ECU 2008 Tahoe 5.3

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widetrackman

TYF Newbie
Joined
Jun 30, 2018
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Evap solenoid valve stays closed all the time. I ohm'd white wire with battery disconnected and the 2 connectors on computer disconnected and it was not grounded. Plug computer back up w/ key off and solenoid clicked closed. Have I checked this right and thinking the computer is always grounding white wire keeping solenoid closed. I think I might need a computer?
 

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